| AMERICAN COUNCIL ON THE TEACHING OF FOREIGN LANGUAGES | $11,182,899 | $11,855,453 |
| VSE EMPLOYEE HEALTH AND WELFARE PLAN | $14,674,982 | $11,408,806 |
| NATIONAL CONGRESS OF PARENTS AND TEACHERS | $11,821,028 | $11,378,763 |
| HORATIO ALGER ENDOWMENT FUND | $27,173,917 | $11,348,007 |
| CAMPAGNA CENTER INC | $11,428,100 | $11,331,075 |
| AMERICAN STATISTICAL ASSOCIATION | $11,683,532 | $11,313,873 |
| NATIONAL SOCIETY OF BLACK ENGINEERS | $8,143,461 | $11,259,446 |
| BURGUNDY FARM COUNTRY DAY SCHOOL INC | $10,943,618 | $10,958,778 |
| AMERICAN MEDICAL GROUP ASSOCIATION INC | $11,433,914 | $10,925,190 |
| AMERICAN ASSOCIATION OF PHYSICISTS IN MEDICINE | $10,311,664 | $10,688,576 |
| AMERICAN CORRECTIONAL ASSOCIATION | $10,196,231 | $10,561,427 |
| AMERICAN BANKRUPTCY INSTITUTE | $9,833,269 | $10,497,114 |
| CLUB MANAGEMENT ASSOCIATION OF AMERICA | $11,021,388 | $10,450,051 |
| NATIONAL STONE SAND AND GRAVEL ASSOCIATION | $9,763,714 | $10,234,202 |
| INDEPENDENT INSURANCE AGENTS AND BROKERS O BROKERS OF AMERICA | $10,929,816 | $10,104,765 |
| AMERICAN ACADEMY OF OTOLARYNGOLOGY HEAD AND NECK SURGERY FOUNDATION | $10,007,368 | $10,008,621 |
| NATIONAL ACTIVE AND RETIRED FEDERAL EMPLOYEES ASSOCIATION | $9,360,228 | $9,989,178 |
| ARGENTUM | $9,740,378 | $9,605,069 |
| NEW HOPE HOUSING INC | $9,453,449 | $9,535,411 |
| NATIONAL SOCIETY OF PROFESSIONAL ENGINEERS | $7,963,206 | $9,136,854 |
| VOA REHABILITATION CENTERS INC | $8,641,537 | $8,832,186 |
| COUNCIL ON SOCIAL WORK EDUCATION | $8,477,371 | $8,722,021 |
| WESLEY HOUSING DEVELOPMENT CORPORATION OF NORTHERN VIRGINIA | $10,596,705 | $8,677,867 |
| HUMAN RESOURCE CERTIFICATION INSTITUTE | $10,051,908 | $8,380,770 |
| WATER ENVIRONMENT RESEARCH FOUNDATION | $8,631,710 | $8,380,128 |